There was also the factor of if the general public would even be able to use them in a functional manner. Which I can say from some of the stupid ways I saw people wearing them, is not an unfounded worry.

And that is exactly the level of nuance they are incapable of addressing. They just cry about his "lies" and when pressed for details it's the pathetic "do your own research" or "watch the videos". Hell you could even point out explicitly that his mask comment was so early and given the context it's completely understandable. They might avoid that one tiny specific topic for a bit, but they'll eventually come back to some grand "fauci lied about everything". And they can't comprehend the actual issues that matter.